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passive vs active input

Discussion in 'Amps and Cabs [BG]' started by poomwah, Jan 5, 2012.

  1. poomwah


    Jan 26, 2008
    Can an amp be damaged by running an active signal into a passive input? or is it just a matter of introducing unwanted distortion by having too hot a signal?
    my amp doesn't have an input for each, just a db cut switch for active, sometimes I forget to use that switch.
  2. Dave W

    Dave W Supporting Member

    Mar 1, 2007
    White Plains
    I don't think it can cause damage.

    I always use the passive input and I've never had an issue.
  3. dog1


    Dec 30, 2008
    Nope. I have an active/passive switch on all three of my GB amps. Plug an active (9V) bass in with the switch on passive. No problem after many years. All the active switch (input) does is cut a few dB. So, for the same volume, you need to turn the gain and volume knobs up more. The choice is yours.
  4. GrowlerBox


    Feb 10, 2010
    Nude Zealand
    + woof.
  5. poomwah


    Jan 26, 2008
    Thanks guys, my amp has lost volume and needs to go in for repair. I just wanted to make sure I wasn't what messed it up so it doesn't happen again

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